EP2537224A1 - Serveur d'agrégation pour véhicules intégré à un réseau - Google Patents

Serveur d'agrégation pour véhicules intégré à un réseau

Info

Publication number
EP2537224A1
EP2537224A1 EP10846283A EP10846283A EP2537224A1 EP 2537224 A1 EP2537224 A1 EP 2537224A1 EP 10846283 A EP10846283 A EP 10846283A EP 10846283 A EP10846283 A EP 10846283A EP 2537224 A1 EP2537224 A1 EP 2537224A1
Authority
EP
European Patent Office
Prior art keywords
grid
evse
eve
vehicle
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10846283A
Other languages
German (de)
English (en)
Other versions
EP2537224B1 (fr
EP2537224A4 (fr
Inventor
Willett Kempton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nuvve Corp
Original Assignee
University of Delaware
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Delaware filed Critical University of Delaware
Priority to PL10846283T priority Critical patent/PL2537224T3/pl
Priority to EP22185669.3A priority patent/EP4106138B1/fr
Priority to DK20180200.6T priority patent/DK3826134T3/da
Priority to EP20180200.6A priority patent/EP3826134B1/fr
Publication of EP2537224A1 publication Critical patent/EP2537224A1/fr
Publication of EP2537224A4 publication Critical patent/EP2537224A4/fr
Application granted granted Critical
Publication of EP2537224B1 publication Critical patent/EP2537224B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/305—Communication interfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/63—Monitoring or controlling charging stations in response to network capacity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/64—Optimising energy costs, e.g. responding to electricity rates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/66—Data transfer between charging stations and vehicles
    • B60L53/665—Methods related to measuring, billing or payment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/68—Off-site monitoring or control, e.g. remote control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/08—Payment architectures
    • G06Q20/085—Payment architectures involving remote charge determination or related payment systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/22—Payment schemes or models
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/40—Business processes related to the transportation industry
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/34—Cabin temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/60—Navigation input
    • B60L2240/62—Vehicle position
    • B60L2240/622—Vehicle position by satellite navigation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/70—Interactions with external data bases, e.g. traffic centres
    • B60L2240/72—Charging station selection relying on external data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/56—Temperature prediction, e.g. for pre-cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/30—Preventing theft during charging
    • B60L2270/32—Preventing theft during charging of electricity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/10—Energy trading, including energy flowing from end-user application to grid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/93—Conjoint control of different elements

Definitions

  • electric vehicles e.g., battery powered vehicles and plug-in hybrid vehicles
  • battery powered vehicles and plug-in hybrid vehicles are charged in a manner similar to those used to charge most
  • the operator plugs a charger for the vehicle's battery into an electrical outlet connected to a utility's electric power grid (the "grid") and the vehicle's charger immediately begins charging the vehicle's battery.
  • the rate at which the vehicle's battery is charged is typically a result of the current limit imposed by the charger's electronics and the varying internal resistance of the vehicle's battery.
  • a vehicle's charger may contain explicit logic or components to alter charge rate in order to prolong the life of the vehicle's battery. Typically, there are no additional components for charge rate control determined by other factors.
  • An exemplary apparatus for aggregating electric power flow between the electric grid and electric vehicles may include a memory and a processor coupled to the memory to receive electric vehicle equipment (EVE) attributes from EVEs, aggregate EVE attributes, predict total available capacity based on the EVE attributes, and dispatch at least a portion of the total available capacity to the grid.
  • EVE electric vehicle equipment
  • An exemplary method for aggregating electric power flow between the electric gird and electric vehicles may include receiving EVE operational parameters from each EVE, aggregating the received EVE operational parameters, predicting total available capacity based on the aggregated EVE operational parameters, and dispatching at least a portion of the total available capacity to the grid.
  • An exemplary system for aggregating electric power flow between the electric gird and electric vehicles may include means for receiving EVE operational parameters from each EVE, means for aggregating the received EVE operational parameters, means for predicting total available capacity based on the aggregated EVE operational parameters, and means for dispatching at least a portion of the total available capacity to the grid.
  • FIG. 1 is a block diagram illustrating an electric power transfer system including an aggregation server, electric vehicle equipment and electric vehicle station equipment in accordance with aspects of the present invention
  • FIG. 2 is a block diagram illustrating exemplary electric vehicle equipment for use within the electric power transfer system of FIG. 1 in accordance with aspects of the present invention
  • FIG. 2a is a block diagram illustrating exemplary electric vehicle equipment for vehicle to vehicle charging in accordance with aspects of the present invention
  • FIG. 3 is a block diagram illustrating exemplary electric station equipment for use within the electric power transfer system of FIG. 1 in accordance with aspects of the present invention
  • FIG. 4 is a block diagram illustrating communication between an exemplary aggregation server for use within the electric power transfer system of FIG. 1 and various entities in accordance with aspects of the present invention
  • FIG. 5 is a flow chart depicting exemplary steps performed by electric vehicle equipment in accordance with exemplary aspects of the present invention
  • FIG. 6 is another flow chart depicting exemplary steps performed by electric vehicle equipment in accordance with exemplary aspects of the present invention.
  • FIG. 7 is another flow chart depicting exemplary steps performed by electric vehicle equipment in accordance with an exemplary aspects of the present invention.
  • FIG. 8 is another flow chart depicting exemplary steps performed by electric vehicle equipment in accordance with an exemplary aspects of the present invention.
  • FIG. 9 is a flow chart depicting exemplary steps performed by electric vehicle station equipment in accordance with an exemplary aspects of the present invention.
  • FIG. 10 is another flow chart depicting exemplary steps performed by electric vehicle station equipment in accordance with an exemplary aspects of the present invention.
  • FIG. 11 is a flow chart depicting exemplary steps performed by an aggregation server in accordance with an aspect of the present invention.
  • FIG. 12 is another flow chart depicting exemplary steps performed by an aggregation server in accordance with an aspect of the present invention.
  • FIG. 13 is another flow chart depicting exemplary steps performed by an aggregation server in accordance with an aspect of the present invention.
  • FIG. 1 depicts an electric power transfer system 100 in accordance with an exemplary embodiment of the present invention.
  • the illustrated system 100 includes electric vehicle equipment (EVE) 102, electric vehicle station equipment (EVSE) 104, an aggregation server 106, and an electric grid 108.
  • EVE 102 is positioned within a vehicle to link the vehicle to EVSE 104.
  • EVE 102 includes a vehicle link (VL) 103 that provides a link from outside entities to components typically found in electric vehicles, which will be described in further detail below.
  • VL vehicle link
  • Electric power is allowed to flow between the grid 108 and EVE 102 of the vehicle through EVSE 104.
  • An aggregation server 106 monitors grid power flow requirements and power flow between the grid 108 and multiple vehicles (each vehicle including EVE 102) and communicates with the grid 108 to allocate the vehicles' electric supply capacity and demand . Based on the determined capacity and demand, the electric power transfer system 100 enables, inter alia, vehicles to be charged during periods of time when there is low demand on the grid 108 and to supply power to the g rid 108 during periods of time when there is high demand on the g rid 108.
  • Thick connection lines 110 between EVE 102 and EVSE 104 (connection line 110a) and between EVSE 104 and the grid 108 (connection line 110b) represent electric power flow and thin connection lines 112 between VL 103 and EVSE 104 (connection line 112a), between VL 103 and the aggregation server 106 (connection line 112b), and between the aggregation server 106 and the grid 108 (connection line 112c) represent communication/data flow.
  • other communication/data paths may be employed for establishing communication with other components.
  • VL 103 may communicate with aggregation server 106 indirectly via EVSE 104.
  • the direct communication between VL 103 and the aggregation server 106 may be omitted and a direct communication path between EVSE 104 and aggregation server 106 would be added .
  • Other communication strategies will be understood by one of skill in the art from the description herein.
  • the grid 108 refers to the electrical power system from generation to the electrical outlet. This includes generators, transmission and distribution lines, transformers, switchgear, and wiring at the "site” (e.g., a house, building, parking lot, and/or other parking location from the electric meter for that location through electrical panels to the electrical outlet) . Sensors, computational logic, and communications may be located at one or multiple locations within the grid to monitor functions associated with the grid, and the vehicle's electrical syste m may satisfy one or multiple functions for the grid.
  • Grid-integrated vehicles generally refer to mobile machines for carrying passengers, cargo, or equipment.
  • Grid -integrated vehicles have an "on-board" energy storage system (such as electrochemical, distillate petroleum products, hydrogen and/or other storage) and a grid connection system to recharge or supplement the on-board storage (e.g. , a battery, capacitor or flywheel, electrolyzed hydrogen) with power from the grid 108.
  • Grid -integrated vehicles may also be plugged into the grid 108 to provide power from the vehicle's on-board storage to the grid 108.
  • Electric vehicle equipment (EVE) 102 generally refers to equipment located in the grid-integrated vehicle to enable communication and power flow.
  • EVE 102 receives EVSE attributes (described below) and controls power flow and grid services to and from the grid -integrated vehicle based on, for example, EVSE attributes, the state of the vehicles on-board storage, expected driving
  • EVE 102 may include a vehicle l ink (VL) 103, also referred to as a vehicle smart link (VSL), that provides an interface between EVSE 104 and the grid -integrated vehicle's vehicle management system (VMS), which generally controls the electrical and electronic systems in the grid-integrated vehicle while not in use (e.g., while parked in a garage).
  • VL vehicle l ink
  • VSL vehicle smart link
  • EVE attributes generally refer to information describing the grid-integrated vehicle that may be transmitted to EVSE 104 to which the vehicle is connected, the aggregation server 106, or to another grid -integrated vehicle. These may include: (1) a unique grid- integrated vehicle ID, (2) allowed billing and other commercial relationships, (3) authorizations of this vehicle, such as IEEE 949 certification for anti-islanding, and (4) technical capabilities of the vehicle, including maximum power output, whether it can produce power independently of grid power (“emergency power mode”), and others.
  • Electric vehicle station equipment (EVSE) 104 generally refers to equipment for interfacing EVE 102 with the grid 108.
  • EVSE 104 may be located at, for example, a building or parking garage, near a street, or adjacent to a motor vehicle parking space.
  • EVE 102 within a grid-integrated vehicle with on-board storage and power delivery and information connections may be connected to EVSE 104.
  • EVSE 104 stores EVSE attributes and can transmit the attributes to EVE 102 of the grid-integrated vehicle or other devices.
  • EVSE attributes are information relating to EVSE such as its status, location, and other information.
  • EVSE attributes generally refer to information related to EVSE 104 that is transmitted to EVE 102 of the grid -integrated vehicle. This may include: (1) characteristics of EVSE's physical capabilities; (2) legal and administrative allowances; (3) legal and administrative restrictions; (4) a unique EVSE ID; (5) allowed billing and other commercial relationships (which EVSE and grid-integrated vehicle participate in); (6) grid services that may be authorized (allowed) at this particu lar EVSE 104 location, and/or others.
  • Electric charging vendor generally refers to a management entity that manages EVSE 104.
  • an EVSE 104 may not have any electric charging vendor.
  • an EVSE 104 in a home garage used to charge the home owner's vehicle from the same electricity supply used by other appliances in the home.
  • an electric charging vendor may have either real-time communication or delayed communication with EVSE 104, may provide real-time authorization for charging to a grid-integrated vehicle connected to the grid, and may require payment for charging.
  • Parking operator generally refers to a company or organization that controls a space where a vehicle may be parked, e.g., with one or more adjacent EVSE 104.
  • the parking operator may charge for use of that space, require identification prior to parking, and/or may barter use of the space in exchange use of EVSE 104.
  • Aggregation server 106 refers to the software, hardware, and management procedures that communicate with grid-integrated vehicles from EVE 102 directly and/or via EVSE 104, issue requests to those vehicles for charging, discharging, and other grid functions, and offer grid services to a grid operator, distribution company, higher level aggregation server(s), generator, or other electric entity.
  • the aggregation server 106 may also receive reports on grid services and charging from EVE 102 and/or EVSE 104.
  • An aggregator is a business entity that manages the aggregation server 106.
  • the aggregation server 106 may manage (control) power flow to/from grid -integrated vehicles connected to the grid 108 to aggregate and sell power to grid operators (e.g., Megawatts of power (MWs)).
  • the aggregation server 106 may also manage information for other entities, including electric charging vendors, local distribution companies, and others.
  • Grid operators may include, for example: (1) a distribution system operator (DSO) ; (2) a transmission system operator (TSO) or an independent system operator (ISO); (3) a generator; (4) an independent power producer (IPP); and/or (5) a renewable energy operator.
  • DSO distribution system operator
  • TSO transmission system operator
  • ISO independent system operator
  • generator (4) an independent power producer (IPP); and/or (5) a renewable energy operator.
  • IPP independent power producer
  • Grid services generally refer to services provided between the grid -integrated vehicle and the grid 108, with power flowing through the EVSE 104.
  • Grid services may include: (1) local building services, such as emergency power; (2) distribution system services such as: (i) providing reactive power, (ii) drawing off-peak consumption, (iii) balancing load on a three phase system, (iv) providing demand response, (v) providing distribution support (e.g., by deferring consumption or releasing energy when the distribution system is reaching a limit, or by using condition monitoring such as transformer temperature to reduce power through that transformer); and (3)
  • transmission and generation system support such as: (i) providing frequency regulation, (ii) providing inter-hour adjustments, (iii) providing spinning reserves; and/or (4) renewable energy support such as (i) providing wind balancing, (ii) providing ramp rate reduction, (iii) providing a shift of energy from the solar peak to the load peak, (iv) absorbing wind or solar power when it exceeds load, among many others.
  • renewable energy support such as (i) providing wind balancing, (ii) providing ramp rate reduction, (iii) providing a shift of energy from the solar peak to the load peak, (iv) absorbing wind or solar power when it exceeds load, among many others.
  • grid services may include charging at off-peak times, regulating the quality of grid power, producing power quickly and sufficiently to prevent grid failures or blackouts, and leveling generation from fluctuating renewable energy sources such as wind and solar sources.
  • Grid location generally refers to the electrical system location where EVSE 104 is connected. This may be a hierarchical location (e.g., electrical position) in the electric system, and may not correspond to a physical location. In an exemplary embodiment of the invention, grid location may be defined based on one or more of: ( 1) the building circuit to which EVSE 104 is connected and fused; (2) the service drop and meter to which EVSE 104 is connected; (3) the distribution transformer to which EVSE 104 is connected; (4) EVSE's distribution feeder; (4) EVSE's substation; (5) EVSE's
  • EVSE's transmission node (6) EVSE's local distribution company; (7) EVSE's transmission system operator; (8) EVSE's subregion; and (9) EVSE's region, ISO or TSO.
  • Due to distribution circuit switching (e.g., reconfiguration) intermediate positions in the hierarchical structure may dynamically change such that EVSE's grid location, for example, may dynamically move from one distribution feeder to another as distribution switches are opened and closed, even though the physical location of the EVSE does not change.
  • FIG. 2 depicts exemplary EVE 102 for use in a grid-integrated vehicle and FIG. 3 depicts exemplary EVSE 104 to which EVE 102 may connect.
  • EVE 102 includes a connector 250 and EVSE 104 includes a corresponding connector 350 for mating with connector 250.
  • EVE 102 includes VL 103, a battery 202, a power electronics module (PEM) 204, a vehicle management system (VMS) 206, and vehicle mating inlet 250.
  • VL 103 includes a microcomputer 210, a memory 212, and a command module 214.
  • VL 103 may be configured to communicate, determine provisions of g rid services, control such provisions.
  • VMS 206 In an exemplary embodiment, PEM 204, VMS 206, and battery 202 are typical components found in a conventional electric vehicle and VL 103 is incorporated in accordance with the present invention to enable such a vehicle to receive/provide grid services.
  • VMS 206 directly controls battery management, charging, and possibly driving functions under direction of VL 103, in addition to controls of VMS 206 by other vehicle controls.
  • the functionality of VMS 206 may be integrated into other devices, such as the PEM 204, or may be performed by one or more devices.
  • VL 103 may be integrated into a grid-integrated vehicle during manufacture or added (retrofit) to a vehicle after manufacture. Although shown as a single device, VL 103 may be two or more devices in separate locations in a grid-integrated vehicle. In some exemplary embodiments, some functions of VL 103 may be provided by other devices and VL 103 may be constructed with only the additional functionality (not already provided in the other devices by the original automobile manufacturer). It may alternatively be a software system for performing functions implemented using existing vehicle computer(s), e.g., within VMS 206 and/or PEM 204.
  • a suitable device that includes components that can be adapted to operate as the microcomputer 210, memory 212, and command module 214 in accordance with the present invention is Mini-ITX manufactured by Logic Supply of South Burlington, VT.
  • Command module 214 controls PEM 204 directly (not shown) or via VMS 206 (and/or controls a separate battery management system) to charge, discharge, and/or provide reactive power, at varying power levels and varying power factors.
  • Microcomputer 210 is configured and programmed to provide the following functionality: (1) two-way communication with EVSE 104; (2) processing EVSE attributes received from EVSE 104; (3) executing instruction stored in memory 212 : (a) to predicatively model the usage of EVE 102 and track interactions with the driver of grid- integrated vehicle; (b) to evaluate grid, battery and vehicle conditions, and (c) to determine whether and when to command EVE 102 to absorb or provide real power or reactive power.
  • Microcomputer 210 may include a programming/communications port 211 for communication with a display, touch screen or programming device (not shown) for programming VL 103.
  • VL 103 stores grid -integrated vehicle attributes ("EVE attributes") in memory 212, and may transmit these attributes to EVSE memory 306 (described below with reference to FIG. 3) or to EVE memory 212 in another connected vehicle.
  • Vehicle attributes include, for example: (1) a unique grid-integrated vehicle ID, (2) allowed billing and other commercial relationships such as valid account numbers or
  • authorization codes for purchase of electricity and parking time (3) authorizations and code compliance certifications of this vehicle, such as IEEE 949 certification for anti- islanding, and (4) technical capabilities of the vehicle, including maximum power output, whether it can produce power independently of grid power ("emergency power mode"), and others, (5) whether it is approved for dispatch by an aggregation server, (6) assurance (or not) of neutral when power is provided by vehicle, and (7) any accounts and authorizations to be credited for grid services.
  • EVE attributes may be static such as unique vehicle ID or dynamic such as the state of charge of the battery, or whether or not the grid-integrated vehicle is currently serving as a local aggregation server for other local connected vehicles.
  • VL 103 may control charging and discharging of battery 202 via VMS 206 and/or may control provision of other grid services. More particularly, VL 103 may: (1) communicate, for example, with a wall-mounted or curb-mounted EVSE 104; (2) receive EVSE attributes from EVSE 104; (3) evaluate EVSE attributes to setup and control charging of the battery, payment for electricity, or other grid services, (4) receive information from the battery 202, PEM 204, VMS 206, onboard current sensor 220, dashboard settings, and other vehicle systems, either via the VMS 206 or via other onboard vehicle communications such as CAN-bus, or directly through driver input, or via other vehicle communications or inputs; (5) send commands regarding charging, discharging, reactive power, and other grid-related electrical power to the vehicle; and (6) send commands to other vehicle systems regarding heating or cooling of the passenger compartment, of the batteries, and any other actions by other vehicle systems.
  • VL 103 may: (1) communicate, for example, with a wall-mounted or curb-mounted EVSE
  • EVSE 104 includes a contactor 302, a microprocessor 304, a memory 306, a ground fault interrupt (GFI) sensor 308, a current measuring sensor 310, and vehicle mating connector 350.
  • Memory 306 may be incorporated into microprocessor 304 or maintained as a separate component.
  • EVSE 104 may include a microcomputer 320, router, or other device for processing packet-switched signals, communicating to external networks, and running programs, with WAN or router connection 322 and local condition detection sensor connections 324. Suitable contactors, microprocessors, memory, GFI processing, and sensors will be understood by one of sill in the art from the description herein.
  • EVSE 104 may be configured for deployment at a garage, public parking space, curb, or other location for automobile parking. EVSE 104 may provide: ( 1) an electrical connection from a grid-integrated vehicle EVE 102 to the power grid 108; (2) EVSE attributes, and (3) a mechanism for billing/crediting grid services.
  • EVSE 104 maintains attributes associated with EVSE 104 such as its status, grid location, and other information for used by grid-integ rated vehicle via VL 103 to control power flow and to provide valuable grid services.
  • microprocessor 304 stores EVSE attributes in memory 306 and selectively retrieves EVSE attributes from memory 306 for delivery to VL 103.
  • EVSE attributes may include static and dynamic attributes.
  • the static attributes may include : grid location information; charging business model such as provisions for payment or credit for electric energy and electric services, compensation for occupying the physical parking space, and other information; unique EVSE identification (ID); forward flow limit; reverse flow limit;
  • the dynamic attributes may include disconnect status, grid power status, vehicle identifier, transformer overload, circuit switch open/closed, building loads, account authorizations, vehicle capabilities, and vehicle authorizations.
  • Microprocessor 304 includes a programming/communication port 305, for example, for downloading static information during installation of EVSE 104, regarding the building, electrical, circuit, safety autho rizations, distribution company, meter account, and other information. Some of this information may be authorized only by DSO electricians or electrical inspectors.
  • the static information may include : ( 1) grid location information indicating the location of EVSE 104 within the grid network; (2) a charging business model indicating whether charging of a vehicle is free, is to be charged, or other options described above; (3) a unique EVSE ID; (4) whether the internet connection from the building or EVSE location has a fixed IP address and if so, what is the IP number, or a dynamic IP assigned by DHCP or other internet protocol ; (5) a forward flow lim it indicating the maximum allowable flow of power into EVE 102 of a g rid-integ rated vehicle from EVSE 104; (6) a reverse flow limit indicati ng the maximum allowable flow of power into EVSE 104 from EVE 102 of a g rid-integ rated veh icle; (7) an emergency power flag indicating if emergency power may be supplied by EVE 102 of a grid-integrated vehicle 204 to EVSE 104 (the static information setting of the emergency power flag may require an inspector to verify that an
  • CAN-bus connection may be authorized from EVSE 104 throug h the vehicle CAN- bus (if appropriate) .
  • EVSE 104 may be authorized to have full access to the vehicle CAN-bus based on EVSE serial nu mber or model nu m ber with or without an encrypted key. If this authorization is not approved by EVE 102 of a g rid-integ rated vehicle, the grid-integrated vehicle may provide an isolated CAN-bus commu nication only between EVSE 104 and VL 103 a nd not to the entire vehicle CAN-bus.
  • EVSE microprocessor 304 or optional EVSE microcomputer 320 may receive dynamic information, for example via port 322 rega rding : ( 1 ) the current status of a disconnect switch servicing EVSE 104 (e .g ., whether cu rrently connected or
  • EVSE 104 may include a voltage sensor to monitor whether the g rid is powe red on .
  • a signal from the disconnect switch may be used to monitor its state (e.g . , opened or closed) .
  • VL 103 may su pply the vehicle identifier to memory 306 via pins 250d/350d, input/output commu nication port 312 and microprocessor 304. Dynamic information may be repeatedly transmitted at predetermined intervals (e.g . , every second to once a minute) .
  • EVSE attributes stored in memory 306 may include additional information used for control of g rid services.
  • memory 306 may store : ( 1 ) a unique serial number for EVSE 104; (2) a building electric meter serial number; and/or (3) a building account.
  • the emergency power flag may i ndicate that emergency power: ( 1) may never be authorized ; (2) may always be authorized ; or (3) may be authorized based on certain conditions such as if EVE 102 of the grid -integrated vehicle is IE EE 929 com pliant.
  • EVSE 104 may include at least one contactor and a transformer (not shown) to match EVE power production to bu ild ing loads when activated by the EVSE for emergency power produced by the EVE.
  • the forward and reverse flow limits may be a dynamic rating supplied by building sensors, smart grid elements such as transformer overcurrent detectors, or by the DSO via the microprocessor 320.
  • the dynamic rating may override any static information stored in memory 306 and may also override the single maximum amperes signaled by a SAE J1772 control pilot.
  • Dynamic information from the DSO 230 could be part of active DSO repair strategies and management procedures, for example, limiting or increasing power consistently with circuit loadings, backfeeding for relief of circuit overload, or provision of emergency power at times consistent with opening, closing, and repair of distribution lines.
  • a single contactor 302, designed for single-phase, is shown in EVSE.
  • One of skill in the art will see how this design is adapted to a simple three-phase system by adding additional poles to the contactor 302 and additional wires.
  • additional contactors may be used, or a contactor with additional poles or throws may be used, such that the grid-integrated vehicle may be connected between any phases of a multi-phase grid system.
  • a DSO may provide information stored in memory 306 to indicate phase connections. Such information may be periodically updated by the DSO to EVSE 104 using programming/communications port 305.
  • EVSE 104 may control the dispatch of power without any authorization from the electric charging vendor or aggregation server 106.
  • a billing mechanism may be provided such that billing is charged or credited to a financial account for grid services and for parking and may be tabulated at time of departure and billed to that account with no separate charges.
  • a billing mechanism there may not be a billing mechanism if the grid-integrated vehicle is providing grid service (parking and grid services may be offset against each other) or free charging is allowed (such as at the vehicle owners' own residence).
  • EVE 102 of a grid-integrated vehicle may provide a valid account number in order to be energized. If a valid account number is not provided, EVSE will not energize and/or a parking violation may be incurred. In such cases, a card reader or bill and coin reader may be included at EVSE to authorize payment or credit to a financial account or for prepayment. Electric charging vendor authorization may be required for credit accounts. When prepayment is exhausted, EVSE 104 may de-energize and/or a parking violation indicator may be activated.
  • a building electrical inspector representative of the load-serving entity, or other authorized party may install EVSE 104 and setup EVSE attributes via port 305 including :
  • default settings of EVSE 104 may be configured to authorize charging of grid -integrated vehicle with EVE 102 at low current upon connection (e.g., the plug present signal confirmations that grid-integrated vehicle is connected to EVSE 104), even if no authorized EVSE 104 setup has been entered.
  • the electrical inspector may check circuit wiring, breaker, and mains, and may enter EVSE attributes into microprocessor 304 via port 305 for storage in EVSE static memory 306, for maximum current draw according to building load conventions.
  • the electrical inspector may enter EVSE attributes into microprocessor 304 via port 305 for storage in EVSE static memory 306 indicating electrical location.
  • the electrical location may include, e.g., EVSE sub-meter if present, a building circuit, a service drop pole number, a distribution transformer, a distribution feeder circuit, substation, load serving entity ID, locational marginal pricing node, and transmission system (TSO or ISO).
  • the associations may be recorded on a medium in EVSE, and sent to the VL in the EVE along with other attributes. Additionally, these associations may at specified times be sent to the electric charging vendor (EVSE 104 maintainer or provider) and one or more aggregation servers 106.
  • a representative of the load-serving entity may inspect (determine) the size of the distribution transformer and building loads and may enter EVSE attributes into microprocessor 304 via port 305 for storage in EVSE static memory 306, for the attribute of reverse flow limit (e.g., grid -integrated vehicle to grid current limit).
  • the reverse flow limit may be set at a different level than (and may be higher than) the forward flow limit.
  • the reverse flow limit may be set to zero to indicate that supply of power to EVSE 104 from grid-integrated vehicle with EVE 102 is not allowed.
  • the reverse flow authorization may be contingent on the vehicle type being certified as conforming to IEEE 929 anti-islanding.
  • a representative of the load-serving entity may inspect for presence of an approved isolation switch, or microgrid switching, and if approved, may set EVSE attribute for emergency power to "true" indicating that grid-integrated vehicle EVE 102 may supply power to the building when power outage at the building occurs, and when the isolation switch has been activated, isolating the building from the grid.
  • a tamper-resistant process may be used to set EVSE attributes via a portable field device connected via programming port 305.
  • items 2, 3, 4, and 5 above may be protected or authorized by an employee ID or password, so they cannot be changed except by an authorized person.
  • Other information, such as the Internet protocol used, may be deliberately not protected, or may have a lower level of protection, so that they may be changed by a building occupant or building IT manager.
  • Some EVSE attributes relating to safety or authorization may be recorded in memory using a digital signature, and transmitted to the EVE 102 along with the digital signature.
  • the EVE 102 and aggregation server 106 can confirm at time of plug-in that the data has been entered into the EVSE 104 by an authorized party. If the authorization is missing or the digital signature is not valid, the authorization decisions in described below with respect to FIGs. 6, 8 and 10 would yield "no".
  • EVE 102 may plug into EVSE 104 which may result in a two-way flow of information and a one or two-way flow of power.
  • EVSE 104 is shown as a stand alone (complete) device, it is
  • EVSE 104 components of this invention such as the storage and sending of EVSE attributes, the digital signal on connector 250d, communication to WAN, and others, may be configured as an add-on device to be included as part of a SAE J1772 or other compliant electric vehicle supply equipment device by adding information and communication capabilities as described herein to such devices.
  • connectors 250/350 comply with Society of Automobile Engineers (SAE) standard J1772, International Electrotechnical Commission (IEC) standard 62196-2, or other domestic or international standard to enable grid-integrated vehicle connections to the grid 108.
  • SAE Society of Automobile Engineers
  • IEC International Electrotechnical Commission
  • the mating connectors 250/350 include a first mating connector 250 for EVE 102 and a second mating connector 350 for EVSE 104.
  • the first mating connector 250 which may be referred to as an "inlet,” includes five male mating pins/contacts 250a, 250b, 250c, 250d, and 250e.
  • the second mating connector 350 includes corresponding female mating pins/contacts 350a, 350b, 350c, 350d and 350e, which are configured to mate with male mating pins 250a, 250b, 250c, 250d, and 250e, respectively. Additional power contacts for three phase and neutral in accordance with draft IEC 62196-2 may also be incorporated in the connectors 250/350.
  • EVSE 104 signals the amount of charging available to EVE 102 over a digital signal wire through mating pins 250d/350d, e.g., as described in SAE J1772.
  • a conventional plug present switch (not shown) may be incorporated into pin 350e.
  • EVSE 104 may signal EVE 102 that the connectors 250/350 are mated in response to the plug present pin 350e receiving pin 250e, e.g., as described in SAE J1772.
  • SAE J1772 and IEC 62196-2 specify that power provided over the pins in the contactor is in response to the pilot signal indicating a connection with the grid- integrated vehicle EVE 102.
  • power may be energized by contactor 302, and adds additional controls this contactor may carry out, specifically, ground-fault detection signal indicating no ground faults, current overload detection indicating that current drawn is not excessive, and account authorization signal indicating authorization for this grid-integ rated vehicle EVE 102 to d raw power from this EVSE 104.
  • the contactor 302 may be a normally opened device such that u nless each of the sig nals ind icates that contactor 302 is to be closed, contactor 302 remains open to stop power flow between the grid and g rid-integrated vehicle.
  • connections/contacts may be used .
  • seven connections can be used for three phase power: one for each phase, one neutra l, one g rou nd, and two for data .
  • con nectors may be provided for power and signali ng to allow DC charging rather than AC charging .
  • the invention descri bed herein may build u pon the standards above described or may be part of mating connector variants with different n u mbers and conventions of connectors, power lines or signal lines.
  • FIG. 4 depicts an exem plary aggregation server 106 and associated connections to other components for offeri ng grid services .
  • the il lustrated agg regation server 106 includes a microcomputer 402 and memory 404 accessible by the microcomputer 402 for storage and retrieval of data .
  • the agg regation server 106 additionally i ncludes communication components (not shown) for establishing communication with VL 103 and optionally one or more of TSO 412, DSO 414, electric charging vendor 416, and parking operator 418.
  • commu nication with aggregation server 106 is via a Wide Area Network (WAN) 450.
  • WAN Wide Area Network
  • Su itable servers, microcomputers, memory, and communication components will be understood by one of skill in the art from the description herein .
  • the parking operator or electric charg ing vendor may operate an agg regation server 106 itself, or may incorporate certain functions of the aggregation server into a loca l central ized control .
  • some functions of the aggregation server would be in a centralized pay station at a parking garage, and payment or receiving of cred it could be made at the pay station rather than directly via VL 103 or EVSE 104.
  • VL 103 may receive EVS E attributes by either:
  • microprocessor 304 may determine that EVE 102 has been connected to EVSE 104, e.g . , based on a pilot sig nal from EVE and microprocessor 304 may then broadcast EVSE attributes over one of the lines connected to EVE 102. In either case, EVE 102 attributes are transmitted to EVSE via a reciprocal process.
  • EVSE attributes may be communicated using a signal encoded by microprocessor 304, sent via input/output port 312, through mating contacts 250d and 350d of mating connectors 250/350 and input/output port 216 of VL 103.
  • EVSE attributes may be sent by a powerline carrier signal through, for example, power contacts 250a and 350a.
  • VL 103 may transmit an account, billing, accumulated kWh, and/or vehicle identifier to EVSE 104, aggregation server 106, an electric charging vendor, or parking operator for payment or credit account authorization.
  • VL 103 may communicate with EVSE 104 via one of: (1) powerline carrier (PLC); (2) CAN-bus, (3) serial communication over pilot line (150D/250D), and/or (4) negative- side signal on the pilot digital pulse width signal, among others.
  • EVE 102 may include a cellular communication device (not shown) to provide a cellular signal as backup communication to aggregation server 106.
  • Other communication techniques such as low power radio, or low-frequency carrier over power lines to functioning VL 102s in other cars, may also be used.
  • VL 103 may communicate in real time or near real time with aggregation server 106. This communication may be through wire-connected WAN from VL 103 to EVSE 104, or EVE 102 may have a cellular or other wireless capability to communicate with the aggregation server 106. In the former case the connection is in effect only when EVE 102 is connected to an EVSE 104 with working LAN communications.
  • the present invention may be adapted for implementation under all of these circumstances.
  • VL 103 will attempt to communicate with the aggregation server 106 using each of the communication methods available, with direct connection through the connectors 250 and 350 tried first, other non-subscriber services next, and cellular next. If no communications to the aggregation server 106 are available, VL 103 enters autonomous mode, described below with reference to FIG. 7.
  • VL 103 determines (keeps track of) the driver's prior trips, needs or stated desires for operation of grid-integrated vehicle and predicts a schedule of likely next trips (next trips predictions may include, for one or more future trips, the likely start time, the likely distance and required charge and the destination).
  • the predictive model may be based on a prediction by EVE based on prior vehicle use, it may be based on explicit schedule information entered by the driver or fleet manager, or it may be based on a generic predictive model that improves itself with vehicle use and driver feedback.
  • Driver input may be by controls on the vehicle, by a portable digital assistant, by a browser-based vehicle scheduling calendar, or by an extension or addition to other scheduling systems already in use by the vehicle drivers or fleet operator.
  • VL 103 Use of the vehicle is recorded by VL 103 and may be used as one data source for subsequent predictions.
  • Driver input may be through on-vehicle controls connected to VL 103, may be through scheduling software hosted on the aggregation server 106 or data from another vehicle support platform, or may be through personal digital assistants or other wireless devices that communicate to VL 103, WAN, aggregation server 106, or other portals.
  • the predicted schedule can be stored on both VL 103, e.g., in memory 212, and the aggregation server 106.
  • EVE can use the next trips predictions, for example, to insure that the car is sufficiently charged when needed, e.g., for transportation and/or heating, determine most economical times to charge, etc.
  • the aggregation server 106 can use the next trips predictions to plan the amount of electrical capacity to be offered for grid services, at what times, and at what location on the grid.
  • VL 103 and aggregation server 106 also have the capability of using the next trips predictions to provide additional services.
  • the next predicted driving time may be used to preheat or pre-cool the passenger compartment so that it is at a comfortable temperature by the time of expected use.
  • This temperature control may be performed by the vehicle heating/cooling system while on grid power, reducing energy draw from the vehicle battery for initial heating or cooling.
  • heat or cool may be stored in thermal storage in the vehicle based on the next trips prediction and current temperature or meteorological prediction of temperature at time of next trips prediction.
  • the predictive model can also be used to provide other driver services. For example, since the next trip destination is known, a parking space or EVSE can be reserved at arrival time. Finally, if the trip is near or beyond the battery range of the vehicle, en-route recharging locations can be identified and suggested to the driver.
  • VL 103 and aggregation server 106 also use the next trips predictions to optimize battery charging for maximum battery life.
  • Maximum battery life may be the primary goal of VL 103, or it may be one of several goals jointly optimized, for example, assuring sufficient charge for the next trip and the provision of grid services.
  • Management for maximum battery life is based on the principle that the rate of charge, the state of charge (SOC), how long the battery stays at each SOC, temperature, and other factors greatly affect life of the battery. For example, a battery that usually stays between 40% and 60% of maximum SOC will last longer than a battery that is frequently charged to full.
  • SOC state of charge
  • EVE 103 may authorize charging to above the usual recommended amount, in this illustrative example, above 90%, but since the next trip time is known, the battery remains in that state only very briefly, i.e., right before the next predicted trip time, thus maximizing range while again minimizing wear to achieve that range.
  • VL 103 and aggregation server 106 contain copies of the predictive schedule, these functions can be carried out by either one; the choice of which device controls can be optimized, for example, using the one that is connected at the time (aggregation server during driving if no cellular link) or the one most proximate and with most relevant local information (EVE during charging).
  • this design also enables "graceful
  • charging to prepare for predicted trips can be performed by VL 103 even if communication to the aggregation server 106 and/or EVSE 104 fails.
  • VL 103 and/or aggregation server 106 may control (make decisions about) the rate and timing of charging and provision of grid services.
  • the driver may transfer information (e.g., an account number) to EVSE 104 or aggregation server 106 or to the electric charging vendor managing EVSE 104.
  • This information may be pre-stored in EVE 102, or provided by a credit card or key fob swipe on EVSE 104 itself via an electronic or magnetic reader (not shown) or personal digital assistant (PDA).
  • PDA personal digital assistant
  • EVSE 104 may receive authorization to energize contactor 302, for example to charge grid-integrated vehicle including EVE 102.
  • EVSE 104 may use the contactor 302 to refuse to charge until the driver or EVE 102 provide acceptable ID or account information for purchase of charging electricity. Also, on behalf of the parking operator, EVSE 104 may refuse to charge or may issue a warning (e.g. audible signal at EVSE or electronic signal transmitted to the parking operator) unless the driver or EVE provides acceptable account information for purchase of parking time.
  • the contactor 302 does not turn grid services on and off. Rather it acts as a fuse for emergency (e.g., GFCI for ground fault, plus overcurrent protection) and to prevent electricity theft (get ID before charging). More complex grid services and control of charge or discharge rate may be done by EVE 102.
  • VL 103 may include (or may access) an electric meter (e.g., a revenue-grade meter) to measure accumulated energy in each direction to and from EVSE 104.
  • This meter may be integrated into EVE 102 based on current sensor 220, on the building (not shown), or in EVSE 104 based on current sensor 310.
  • the revenue meter can be used to measure grid services or simply accumulated or net charging energy.
  • VL 103 may include power management so that VL 103 may be switched on : ( 1) all of the time, (2) only when vehicle is plugged in, or (3) only when grid services are being required.
  • VL 103 may be switched off after EVE 102 has been unplugged more than a threshold amount of time, or in some autonomous modes after the battery is charged to the desired level, to reduce battery d rain when parked and disconnected for long periods of time.
  • EVSE attributes including EVSE ID, are used to determine whether charging, grid services, and other services are available at this location, and whether this vehicle shall pay for them and/or be paid .
  • the vehicle ID may additionally be used by EVSE, e.g ., along with account lookup via the electric charg ing vendor. For given EVSE charging attributes, the actions taken include:
  • EVSE attribute "unrestricted charging” Upon connection of a vehicle's
  • EVE 102 to EVSE 104 signified by the pilot signal, the microprocessor 304 sends attributes to EVE 102 and closes the contactor 302 so that the vehicle can begin charging .
  • This "unrestricted charging" case is an unmodified SAE J 1772 standard EVSE and vehicle, in which EVSE sends no attributes, and closes the contactor without any attribute
  • EVSE attribute free charging for known occupants/workers/members.
  • microprocessor 304 sends EVSE attributes to EVE 102 and waits for vehicle ID.
  • EVE 102 sends vehicle ID to EVSE 104.
  • EVSE 104 looks up the vehicle ID and, if it is recognized by EVSE 104, EVSE 104 closes the contactor 302 and the vehicle can begin charging.
  • EVE 102 sends vehicle ID to EVSE 104, and EVSE 104 queries the electric charging vendor, to receive approval. EVSE 104 then closes the contactor 302 if approval is received .
  • EVSE attribute "charging for approved account holders.”
  • the microprocessor 304 sends EVSE attributes to EVE 102 and waits for an account number and possible additional codes or authorization.
  • EVE 102 may send a code, such as an account code with digital signature, which is then processed by EVSE 104, e.g ., by sending it for approval to the electric charging vendor. If EVSE 104 approves the code, it closes the contactor 302 and logs the time and amount of energy (kWh) used for charging .
  • EVSE 104 uses a meter based on current sensor 310, voltage measurement and standard signal processing (not shown) in microcomputer 320, or, e.g., a separate revenue meter accessed by EVSE 104 via a secure communication.
  • the vehicle account may not be billed, it may be billed for time, it may be billed for kWh, and/or it may be billed against credits. A variant of this is that the account is used to pay for the use of a parking space. If EVE 102 does not send an approved code, EVSE 104 does not close the contactor 302, and/or may indicate by a sound, light, or electronic signal, that parking in that location is not allowed. E attribute "Grid Services with V2G permitted here.” Upon connection,
  • EVSE microprocessor 304 sends EVSE attributes to EVE 102 and closes the contactor 302.
  • VL 103 assesses EVSE attributes, passes grid location and electrical capacity to the aggregation server 106. VL 103 then compares the battery 202 state of charge with the predicted next trip time and distance, and any other driver parameters regarding minimum range requirements and driver preferences to optimize grid- integrated vehicle (GIV) revenue versus maximum range versus maximum battery life. Based on these considerations, VL 103 registers with the aggregation server 106 its ability to provide one or more grid services, each at zero or more capacity, for a specified period of time at this location.
  • EVE 102 When EVE 102 is providing grid services, it may use an on-board meter that may be based on current loop 220 and other measurements and processing, or may be part of the PEM 204.
  • VL 103 may choose to, or may offer to, refund or credit the cost of charging to the entity paying for electricity at that EVSE.
  • VL 103 identifies the EVSE location, building meter account, or other identifier of the entity paying for electricity. The identification could be accomplished using EVSE attributes, in particular EVSE ID and/or the building meter number.
  • An EVSE 104 without the ability to identify itself to VL 103 may be, for example an EVSE conforming to SAE J1772, or IEC 62196-2, but not having the additional capabilities described herein, or may be a simple electrical outlet with an adapter.
  • EVE 102 may use additional means of identification.
  • One method is an electronic "ping" with a distinct digital signature from a device inside the building, such as an X19 transmitter.
  • the transmitter may be placed in the building and it creates an electronic signature readable by VL 103 of all vehicles plugged in to any EVSE 104 or to any plug within the same distribution transformer.
  • a second method for identifying the entity paying for electricity is to use GPS, in conjunction with a list of known charging locations stored in VL 103 or aggregation server 106. GPS is not precise enough for the reliability needed for safety-related services and authorizations such as backfeeding and emergency power, but may be sufficiently reliable for billing or crediting a revenue meter account for charging electricity.
  • VL 103 may include a vehicle-to-vehicle communication module (not shown) for communicating to other vehicles via a low power short-range radio, or via low frequency signals (e.g., 1 to 300 KHz) via powerline carrier (PLC) over the grid 108 or power wires.
  • the signal frequency may be selected to be able to pass through one or more
  • Such communication may be useful for the following reasons: (1) so that multiple cars may provide grid services cooperatively, (2) in case of failure of the normal signal through EVSE, or (3) in order to increase bandwidth, a group of vehicles in local communication can signal to the aggregation server that only one internet signal may be needed to activate, and receive reports from, a cluster or local aggregation of locally-communicating vehicles.
  • EVE 102 When communicating directly with other vehicles, EVE 102 may function as an agent with authorized peers. Vehicle-to-vehicle communication may be used either to compensate for loss of direct communication to aggregation server 106, or to act on command from other nearby authorized vehicles to pool bandwidth for real-time dispatching and return reporting.
  • EVE 102 of one grid-integrated vehicle may be nominated to serve as a local coalition representative.
  • the local coalition representative receives a communication from aggregation server 106, parses it into individual vehicle portions, broadcasts the corresponding commands to nearby or adjacent vehicles. In response, those nearby vehicles each independently respond to their command, then each sends a response to the local coalition representative, the local coalition representative adds or accumulates those response reports, and reports them as an combined total response to the aggregation server.
  • EVSE 104 may be approved by the OEM (automaker) for CAN-bus connectivity.
  • EVE 102 may include equipment to extend the digital connection of the CAN-bus in the grid-integrated vehicle EVE 102 to EVSE 104 via, for example, via mating contacts 250d and 350d. This extension may be contingent on authorization indicated by an "authorized CAN-bus" code in EVSE memory 306.
  • EVE 102 can provide load balancing across three phase power.
  • a PEM 204 may be capable of drawing from two phases.
  • VL 103 can detect the highest voltage across any two phases, and have the PEM 204 switch to using power from those two phases. This may be accomplished with EVE 102 incorporating appropriate lags and consideration of the expected drop in voltage across the two phases from which the PEM 204 is drawing.
  • EVE 102 provides dynamic three-phase load balancing.
  • FIG. 2A depicts a vehicle-to-vehicle charging system.
  • VL 103a of a first vehicle (the "donor” vehicle) includes additional functionality to enable it to appear as an EVSE to VL 103b of a second vehicle (the "recipient” vehicle) .
  • a communication cable 290 including identical connectors on each end for attachment to connectors 250a, through 250d enables signal flow between the donor and recipient vehicles and power flow from the donor vehicle to the recipient vehicle.
  • Donor vehicle EVE 102a may include circuits to generate an ampere capacity signal as if it were an SAE J1772 compliant EVSE, or an IEC 62196-2 compliant EVSE, or similar. Donor vehicle EVE 102a may have circuits to detect recipient EVE 102b as an EVE to be charged. Additionally, EVE 102a in the donor vehicle may be capable of activating the PEM and battery in 120a so as to generate grid-like alternating-current power from the battery 202 direct-current power. EVE 102a or the communication cable 290 provides the passive signal for plug present. Thus, EVE 102a and communication cable 290 together appear to EVE 102b of the recipient vehicle as if it were an EVSE.
  • EVE 102b may have additional encoding/decoding equipment for communication not specified in SAE J1772 including one or more of: digital signaling on the negative side of a control pin, digital signaling on the negative side of a CAN-bus or single-wire Ethernet, and/or power line carrier Ethernet over the power wires to EVSE 104.
  • no connection is made by either vehicle to earth during vehicle-to-vehicle charging. This reduces any risk of electrical potential (voltage difference) between earth ground and any hot, neutral, or chassis ground on the vehicles and reduces the need for GFI protection.
  • GFI protection may be added to the donor vehicle.
  • EVE 102a may have a physical switch, software button, numeric input, or other input device (not shown), which allows the user to signal intent as to which vehicle is to be the donor, and also allows the user to set a numeric limit, for example in kWh, on the maximum energy transfer to be made.
  • EVE 102 may have stored in its memory 212 vehicle attributes, including one or more of account numbers, utility meter accounts,
  • EVE 102 may have vehicle dynamic attributes, including records of accumulated kWh energy in each direction, its logged provision of grid services, and the time it occupies a parking space, and my use these dynamic attributes in order to calculate payments or credits. EVE 102 may communicate to EVSE 104, the electric charging vendor 310, and aggregation server 300 for a financial transaction, bill, or invoice for energy and grid services.
  • EVE 102 If EVE 102 is unable to communicate, for example, because the WAN 330 is disconnected at the time the credit or payment calculation is completed, the information may be stored in EVE and communicated later, when WAN connection 330 is restored.
  • Payment or settlement may include goods and services such as kWh of charging energy, minutes of charging, time based or system- related billing components, such as "off peak rate” or "absorbing excess wind rate”, non-electrical attributes, such as "green power”, locally-controlled grid services, and non-electrical services, such as parking.
  • FIG. 5 is a flow chart 500 of exemplary steps for managing power flow in accordance with embodiments of the present invention. To facilitate discussion, the steps of flow chart 500 are described with reference to EVE 102 and EVSE 104.
  • EVE 102 establishes communication with EVSE 104.
  • EVE 102 receives EVSE attributes from EVSE 104.
  • EVE 102 manages power flow between EVE 102 and EVSE 104 based on EVSE attributes.
  • FIG. 6 is a flow chart 600 of exemplary steps for interfacing with EVSE 104 to manage power flow from the perspective of EVE 102.
  • EVE 102 detects a plug-in event.
  • EVE 102 detects the presence of an EVSE connector 350 by the corresponding connector 250 of EVE 102, e.g., based on a plug-present signal generated by pin 250e. If plug-in is detected, processing proceeds to step 604. Otherwise, EVE 102 continues to wait for a plug-in event.
  • EVE 102 receives power capacity from EVSE 104.
  • EVSE 104 automatically transmits its plug capacity in a pilot signal to EVE 102, e.g., in accordance with SAE 111772 and/or IEC 62196-2, when EVSE 104 is plugged into EVE 102.
  • EVE 102 establishes communication with EVSE 104.
  • communication is established in accordance with one of the methods described above.
  • EVE 102 determines if EVSE attributes are available from EVSE 104. If EVSE attributes are available, processing proceeds to step 610. If EVSE attributes are not available, processing proceeds to step 614.
  • EVE 102 receives EVSE attributes.
  • VL 103 receives EVSE attributes directly from EVSE 104 by one of the methods above, such as serial communication over the negative-side pilot signal, or powerline carrier.
  • EVSE attributes include grid location, charging business model, unique EVSE identification, dynamic forward flow limit, dynamic reverse flow limit, and emergency power flag.
  • EVE 102 sets a local copy of attributes for the EVSE 104.
  • VL 103 copies the attributes received from the EVSE to a copy of those attributes in memory 212.
  • EVE 102 sets a local copy of attributes for the EVSE to defaults.
  • VL 103 sets the defaults in local memory 212; defaults may include attributes to allow charging of vehicle, but not to allow backfeeding or emergency power from the vehicle.
  • EVE 102 sends EVE attributes to the EVSE 104.
  • VL 103 sends the following exemplary attributes to EVSE 104: (1) a unique grid-integrated vehicle ID, (2) allowed billing and other commercial relationships such as valid account numbers or authorization codes for purchase of electricity and parking time, (3) code compliance of this vehicle, such as IEEE 949 certification for anti- islanding, and (4) technical capabilities of the vehicle, including maximum power output, whether it can produce power independently of grid power ("emergency power mode"), and others, (5) whether it is approved for dispatch by an aggregation server, (6) assurance (or not) of neutral when power is provided by vehicle, and (7) any accounts and authorizations to be credited for grid services.
  • EVE 102 determines its operational parameters.
  • VL 103 determines operational parameters, which include charge and discharge power capacity, e.g ., in kilowatts, based on EVSE power capacity, EVE power capacity, EVSE attributes, battery kWh and state of charge, and driving schedule.
  • charge and discharge power capacity may be determined in part by the current energy level of the battery 110 ("battery energy") and the additional energy level needed to charge the battery 110 to full (“battery headway”) .
  • EVE 102 determines if the location of the EVSE 104 is known.
  • VL 103 determines if location i nformation is present in the EVSE attributes. If the location is know, processing proceeds at step 626. If the location is not known, processing proceeds at step 622.
  • EVE 102 receives GPS data.
  • EVE 102 receives GPS location data from a conventional GPS receiver.
  • EVE 102 determines the location of the EVSE 104.
  • VL 103 determines the location of the EVSE by comparing GPS data to known locations for EVSE 104 and identifies the known location nearest the GPS location data as the location of the EVSE 104. If the location has been inferred or based on GPS, EVE sets in memory 212 a flag that the location is "uncertain", that is, may be less reliable than if set by EVSE attributes.
  • EVE 102 checks for authorizations.
  • VL 103 processes authorizations by checking for electric account or electric charge vendor information identified in attributes for the EVSE. If electric account or electric charge vendor information is avai lable, processing proceeds at block 628. Otherwise, EVE 102 identifies the authorization as uncertain in step 627.
  • EVE 102 processes authorizations.
  • VL 103 retrieves account and authorization information and processes the information for payment, if required. If account information was not provided but location is known or inferred, and a building electric account at the location is authorized, VL 103 may infer account information. In addition, VL 103 may determine if additional authorizations have been received, for example, to use an aggregation server other than its normal aggregation server, if it is al lowed to backfeed, and if it is allowed to provide emergency power, e.g ., based on attributes from the EVSE 104.
  • EVE 102 will attempt to connect to an aggregation server 106, if authorized.
  • VL 103 will attempt to connect to a local aggregation server. Otherwise, VL 103 will attempt to use the normal aggregation server for the vehicle.
  • EVE 102 enables power flow.
  • VL 103 enables power flow by instructing PEM 204 through VMS 206.
  • FIG. 7 is a flow chart 700 of exemplary steps for EVE 102 to interface with the aggregation server 106 if connection with the aggregation server 106 is established, or to operate autonomously if connection to the aggregation server is not established . In either case, flowchart 700 shows how to manage power flow from the perspective of EVE 102.
  • EVE 102 determines if it is in communication with aggregation server 106.
  • VL 103 determines is there is communication with aggregation server 106. If there is communication with aggregation server 106, processing proceeds to step 704. If there is not communication with aggregation server 106, processing proceeds at step 726 with EVE 102 operating in an autonomous mode.
  • EVE "handshakes" with aggregation server 106 to establish communication.
  • VL 103 handshakes with aggregation server 106 to set communication protocols and register its presence with aggregation server 106. This request is processed by the aggregation server. See, for example, flowchart 1100, step 1106 described below.
  • EVE 102 sends EVE operational parameters to aggregation server 106.
  • VL 103 may send to the aggregation server EVE operational parameters, which include those calculated by VL 103, as well as those copied from EVE attributes and those copied from EVSE attributes.
  • EVE 102 synchronizes its driving schedule, also referred to as "next trips predictions.”
  • VL 103 and aggregation server 106 each maintain a driving schedule for the vehicle in which EVE 102 is located.
  • the driving schedule may be a prediction of future trips, based on human inputs and, optionally, computer predictions.
  • the human inputs are time stamped when entered, and the driving schedules are synchronized such that in the event of a conflict between schedules on the EVE versus those on the aggregation server, human inputs override computer predictions and more recent human inputs override older inputs.
  • EVE 102 may restrict sending to a limited driving schedule, for example, only sending the next departure time to a parking operator's aggregator.
  • EVE 102 optionally transmits saved data to aggregation server.
  • VL 103 checks for data stored while EVE 102 was operated in an autonomous mode, e.g., due to a previous communication failure with aggregation server 106, described below with reference to steps 726-736 of flow chart 700.
  • Stored data may include charging or grid services performed previously, and stored in a log in memory 212 while VL 103 was not not in communication with aggregation server 106.
  • EVE 102 determines its available capacity.
  • VL 103 determines available power capacity based on EVE operational parameters, in turn based on battery energy, battery headway, driving schedule, EVE attributes, and EVSE attributes. Driving schedule may affect available capacity in a number of ways. For example, if the vehicle is scheduled to be driven in less than one hour a distance that would require 75% of its battery energy, VL 103 may determine that less that the full power capacity is currently available or no capacity is currently available.
  • EVE 102 determines the effect on the battery of reaching and sustaining various levels of charge (e.g., based on battery manufacturer specifications) and bases available capacity calculations on charging the battery to a level just sufficient for the electric vehicle to carry out predicted trips determined fro the driving schedule, while minimizing wear on the battery, so as to prolong battery life.
  • various levels of charge e.g., based on battery manufacturer specifications
  • EVE 102 reports its available capacity to aggregation server 106.
  • VL 103 communicates available capacity to aggregation server 106.
  • EVE 102 receives a dispatch signals from aggregation server 106.
  • VL 103 receives dispatch signals from aggregation server 106.
  • the dispatch signals from aggregation server include requests for receiving or supplying power to the grid 108.
  • steps 1304 and 1306, the aggregation server will not request power to or from vehicles at greater than their reported capacities.
  • EVE 102 controls power flow between EVE 102 and the grid 108.
  • VL 103 controls the flow of power between EVE 102 and the grid 108 through EVSE 104 based on the dispatch signal processed at 716.
  • the power flow may be to or from the grid 108.
  • EVE 102 measures actual power flow.
  • VL 103 receives a power flow signal from PEM 204 indicating actual power flow between EVE 102 and the grid 108.
  • VL directly measures power using current sensor 220 and voltage from PME 204, combining the two to calculate power.
  • EVE 102 reports the measured power flow.
  • VL 103 reports the measured power flow to the aggregation server 106.
  • EVE 102 determines if response to dispatch should end. If no, processing proceeds at block 712 with an updated report on capacity or block 716 with receipt of another dispatch signal. If yes, processing ends. Processing may end, for example, if EVE determines that it should shift to charging only, if there is a disconnect between the EVE 102 and the aggregation server 106, the vehicle is unplugged, there is a loss in grid power, and/or a fault occurs.
  • VL 103 determines whether to adjust reported capacity in step 714. If reported capacity is to be adjusted, processing may continue at step 712 periodically, e.g., every 15 minutes, and/or in response to a discrepancy between the capacity specified in the dispatch signal and the actual power measurements in step 720. If reported capacity is not to be adjusted, processing may continue at step 716 periodically, e.g., every 5 minutes, and/or in response to an end time specified in the dispatch signal received at step 716.
  • step 726 which is reached if EVE 102 is unable to establish communication with the aggregation server 106, EVE 102 enters an autonomous mode.
  • EVE 102 sets control by aggregation server off and sets autonomous control on.
  • VL 103 toggles all aggregator-controlled grid services off and toggles on grid services based on local information, e.g. , charging and provision of services based on local detection such as local frequency detect and reactive power, or simply off-peak charging.
  • EVE 102 determines whether to charge and/or which local services to provide.
  • VL 103 decides to provide local grid services, based on EVE operational parameters, including EVSE attributes and driving schedule in VL memory 212 by sensing local grid conditions such as frequency, voltage or reactive power.
  • VL 103 may determine from EVE operational parameters in memory 212 to set charging current to zero and wait for off-peak electric rates, then charge up to the charge needed for the next trip beginning when those rates go into effect.
  • EVE 102 controls power flow (e.g., charge or discharge).
  • VL 103 charges and discharges based on the determinations made at step 729.
  • EVE 102 optionally provides local grid services.
  • EVE 102 logs power flow transactions.
  • EVE 102 logs power flow transactions.
  • VL 103 logs all power flow transactions and local grid services while EVE 102 is disconnected from aggregation server 106 for subsequent reporting when communication with aggregation server 106 is established or reestablished (see step 710).
  • EVE 102 ends autonomous processing mode.
  • VL 103 ends autonomous processing in response to reestablishing connection to the aggregation server or unplugging EVE 102 from EVSE 104.
  • FIG. 8 is a flow chart 800 of exemplary steps for supplying power from EVE 102 in the event of a power outage.
  • EVE 102 determines if there is grid power loss.
  • PEM 204 detects power loss in a conventional manner and VL 103 determines that there is grid power loss through communication with PEM 204. If there is grid power loss, processing proceeds at step 804. Otherwise VL 103 continues to periodically check for grid power loss, while performing the other processing steps of flowchart 700.
  • EVE 102 halts power flow to the grid 108.
  • VL 103 immediately instructs PEM 104 to not deliver power (this is a typical anti-islanding provision). This is done prior to any other processing and in one exemplary embodiment may be performed at a lower level of hardware or by other means to insure fail safe cutoff.
  • EVE 102 determines if EVSE 104 authorized it for use in the event of grid power loss, and if it has capabilities to do so.
  • VL 103 determines whether an EVSE attribute has been received indicating that EVSE 104 is authorized to receive power (e.g., has been approved by an electrician as having proper equipment installed) in the event of grid power loss. If EVSE 104 is authorized, processing proceeds at step 812. Otherwise, VL 103 discontinues supplying/will not supply power from EVE 102 to EVSE 104.
  • EVE 102 determines if EVSE 104 is isolated from the grid 108.
  • VL 103 determines whether EVSE 104 is isolated based on a positive indication from EVSE 104 or from another device, e.g., a manual or automatic building isolation switch. If EVSE 104 is isolated, processing proceeds at step 810. Otherwise, VL 103 discontinues supplying, or will not supply, power from EVE 102 to EVSE 104.
  • Existing electrical codes require an isolation switch to electrically isolate the building loads from the dead grid. These codes require such isolation from the g rid 108 prior to starting an emergency generator to energize the building or load side.
  • EVSE 104 processes the required verification of isolation from the isolation switch, and signals EVE 102 that it should subsequently be the source of electric power generation.
  • a standard isolation switch may be used to detect loss of grid power, to disconnect the building/house or load from the grid 108, and to signal that this isolation has been achieved via a wire labeled, for example, "start generator” connected to EVSE 104.
  • EVSE 104 can be configured for emergency power use by setting a static EVSE attribute, e.g., "emergency power flag,” indicating that a qualified electrician has confirmed that the isolation switch is installed correctly, that it is correctly connected to EVSE 104, and possibly that a center-tap transformer is provided as specified below.
  • three dynamic attributes may be used to signal readiness to generate, e.g., (1) dynamic EVSE attribute indicating that the "start generator" or similar signal from the isolation switch is on, (2) dynamic EVSE attribute indicates that the center-tap transformer is connected by contactors, and (3) dynamic EVSE attribute indicates that the currently plugged-in vehicle is capable of this type of generation mode.
  • these static and dynamic attributes are transmitted to EVE 102.
  • EVE 102 will not instruct the vehicle to produce power unless these EVSE attributes are set correctly, and unless the attribute indicating that the isolation switch is working continues to be on.
  • a center-tap 240V inductor For single-phase, center-tap neutral electrical connections, a center-tap 240V inductor, rated at the same power rating as the maximum output of EVSE circuit, may be added to EVSE 104.
  • the center tap 240V inductor may be normally disconnected from EVSE 104 via contactors or relays.
  • the inductor When the grid-integrated vehicle is providing emergency power, the inductor may be connected across the 240 VAC from the vehicle. This configuration enables a vehicle which provides 240 volts, but without center-tap neutral, to feed into a center-tap neutral building electrical system. It will be understood by one skilled in the art from the description herein how a three-phase building may similarly use a corresponding transformer in Y or Delta configuration.
  • EVE 102 provides power to EVSE 104.
  • EVSE 104 In an exemplary
  • VL 103 instructs PEM 204 to deliver power to EVSE 104, e.g., for powering house in the event of power failure, for example.
  • EVE 102 determines if it should end supply of emergency power.
  • VL 103 determines EVE 102 should stop supplying
  • EVE 102 determines it should continue to supply emergency power, processing proceeds at step 806.
  • EVE 102 discontinues supplying power.
  • EVE 102 discontinues supplying power.
  • VL 103 instructs PEM 204 to discontinue supplying ,or to not supply, power from EVE 102 to EVSE 104. If the threshold was reached due to low battery, VL 103 may additionally shut down EVE 102 in order to preserve battery power.
  • VL 103 may be used to control other devices with storage ability and with some predictability about the time that energy needs to be withdrawn from storage.
  • embodiments of the invention may be applied to storage space heaters or storage furnaces, which similarly have predictable use (in cold weather) and which may be charged up (with heat) by timing energy input in order to provide grid services.
  • the heat storage may be configured such that only one-way electrical power flow to the storage space heater is provided, not the extraction of electricity from the heat storage.
  • EVE 102 operates as described in this invention, with adaptations such as setting to zero the parameter reverse flow limit, and instead of predicting battery capacity, timing and duration of trips, rather, EVE 102 predicts building or occupant needs for heat services such as space heat, cooling, hot water, or clean dishes.
  • Other building electricity uses that involve energy storage, and thus potential management, such as chilling or water heating, may similarly be controlled by VL 103.
  • An exemplary algorithm for configuring VL 103 within EVE 102 to implement the steps described above with reference to FIGs. 6-8 is now provided.
  • EVSE power capacity EVE power capacity
  • EVSE attributes battery kWh and state of charge, driving schedule, etc
  • ELSE get GPS location and infer or approximate locational parameters IF electric account, electric charging vendor, etc available from EVSE
  • UNTIL aggregator disconnected, vehicle unplugged, grid power loss, or fault Autonomous mode, plugged in to EVSE but not connected to aggregation server
  • Toggle on grid services based on local information including
  • FIG. 9 is a flow chart 900 of exemplary steps taken by EVSE for managing power flow in accordance with aspects of the present invention.
  • EVSE 104 maintains EVSE attributes.
  • maintaining EVSE attributes may include initialization of static EVSE attributes and digital signature by authorized personnel, and updating dynamic EVSE attributes by EVSE microprocessor 304.
  • EVSE 104 establishes communication with EVE 102.
  • EVSE 104 establishes communication with VL 103 of EVE 102.
  • EVSE 104 transmits the maintained EVSE attributes to EVE 102.
  • EVSE 104 transmits EVSE attributes to VL 103 of EVE 102.
  • FIG. 10 is a flow chart 1000 of exemplary steps for interfacing EVSE 104 with EVE 102 to manage power flow from the perspective of EVSE 104.
  • EVSE 104 detects a plug-in event.
  • EVSE 104 detects the presence of an EVE connector 250 by the corresponding connector 350 of EVSE 104, e.g., based on a plug-present signal generated by pin 350e. If plug-in is detected, processing proceeds to step 1004. Otherwise, EVSE 104 continues to wait for a plug-in event.
  • EVSE 104 establishes communication with EVE 102.
  • communication is established in accordance with one of the methods described above.
  • EVSE 104 transfers attributes.
  • microprocessor 304 retrieves EVSE attributes from memory 306 and transmits EVSE attributes to VL 103. Additionally, EVSE 104 receives EVE attributes from EVE 102 and stores them in EVSE memory 306.
  • EVSE 104 determines if payment is required. If payment is not required, processing proceeds at step 1012. If payment is required, processing proceeds at step 1010.
  • EVSE 104 determines if charging is authorized. If charging is authorized, e.g., in response to an account number lookup, a card swipe, coin deposit, etc., processing proceeds at step 1012. If charging is not authorized, EVSE 104 waits for authorization. In an exemplary embodiment, EVSE 104 may alert the user of the vehicle if authorization is not received, e.g., by sending a message to EVE 102 for display to the driver within the vehicle or displaying a message on a display (not shown) associated with the EVSE 104, and awaiting an alternative payment method.
  • EVSE 104 energizes the connector.
  • microprocessor 304 energizes connector 350 by closing contactor 302.
  • EVSE 104 records energy usage.
  • microprocessor 304 records usage during the period of time when contactor 302 is closed. Additionally, if grid services are being provided by vehicle for parking privileges, EVSE 104 may record this. EVSE may also optionally report periodically to an electric charging vendor.
  • EVSE 104 de-energizes the connector.
  • a connector In an exemplary
  • microprocessor 304 de-energizes connector 350 by opening contactor 302.
  • EVSE 104 logs the recorded usage.
  • microprocessor 304 logs the recorded usage in memory 306.
  • EVSE 104 may calculate total power flow transactions, e.g., net energy use, duration parked, etc.
  • EVSE 104 transmits the recorded usage to an electric charging vendor.
  • microprocessor 304 retrieves the recorded usage from memory 306 and transmits to the electric charging vendor. Additionally, EVSE 104 may report disconnect and calculated total energy transaction information to electric charging operator and to parking operator.
  • EVSE communicates with the vehicle with the following three-part algorithm. Plug-in and disconnect of vehicle are event-driven. Upon plugin of vehicle
  • control wire e.g. serial encoded, CAN-bus, or single-wire Ethernet
  • Await authorization from vehicle local action by driver (e.g. card swipe, coin deposit) or authorization from electric charging vendor
  • FIG. 11 is a flow chart 1100 of exemplary steps for interfacing EVE 102 with aggregation server 106 to manage power flow from the perspective of aggregation server 106.
  • aggregation server 106 boots up and, at step 1104, aggregation server 106 loads configuration parameters.
  • aggregation server 106 loads from local storage DSO maps, a list of registered charge locations ( DSO location and accounts) a list of VLs 103 registered (with accounts) and, for each registered VL 103, account number(s), and last known driving schedule, also called predicted next trips.
  • aggregation server may retrieve over the Internet from the TSO (name of grid service buyers, market rules, and signaling rules), DSO (updated DSO circuit and system maps, and switch states), and/or IPP (generator state, generators needing storage resources).
  • aggregation server 106 receives a connection request from a vehicle (i.e., a call-in request or a redial/reconnect request).
  • aggregation server 106 receives EVE operational parameters, including EVE attributes.
  • EVE attributes include unique EVE ID, unique EVSE ID, and all operational parameters calculated in EVE algorithm steps 618 and 628.
  • aggregation server 106 aggregates one or more of EVE attributes and EVE operational parameters.
  • aggregation server 106 aggregates power capacity, battery energy, battery headway, and driving schedule information.
  • aggregation server 106 predicts total available capacity from an aggregate of one or more connected EVEs. In an exemplary embodiment, aggregation server 106 predicts total available capacity based on energy, headway, and schedule of each connected EVE. In an exemplary embodiment, aggregation server 106 identifies EVEs 102 that are likely to be available in particular blocks of time, e.g., 6 minutes, 10 minutes, 15 minutes, an hour, two hours, etc. Aggregation server 106 may elect to not use vehicle who are scheduled to be disconnected from the grid 108 shortly after the scheduled block, e.g., if the vehicle is scheduled for a trip on Monday at 2: 10 pm.
  • aggregation server 108 may also include capacity of vehicles predicted to be available, based on driving schedule, even if not connected at the time step 1112 is performed.
  • the aggregation server 106 then sums capacities from the vehicles that are available during each block of time.
  • the aggregation server 106 may sum capacities such as power, battery charge, and battery headway from each vehicle available based on calendar information during a particular period of time, e.g., Monday between 2 and 3 pm. For example, if there are 1,200 vehicles and 1,000 of them are predicted to be available between 2 and 3 pm on Monday and each vehicle is capable, on average, of delivering lOkW during that period of time, the total predicted power capacity would be 10MW.
  • the aggregation server 106 may additionally reduce the total capacity by a certain percentage, e.g ., 15%, to achieve a reliable power capacity offering while accounting for vehicles that may be disconnected during a block of time when their schedule indicates they are available (i.e., unplanned and unpredicted trips). For example, the total capacity of 10MW may be reduced to 8.5MW as the reported total available capacity.
  • the percentage adjustment may be determined based on the aggregation server's historical ability to provide capacity to the grid and the amount of penalty for failing to provide offered capaclity. For example, if the total available capacity is delivered 99.9 percent of the time when dispatched, the reduction percentage may be decreased (e.g., to 10 percent). On the other hand, if the total available capacity fails to be delivered 10 percent of the time when dispatched, the reduction percentage may be increased (e.g., to 25 percent).
  • aggregation server identifies a market for the predicted total available capacity.
  • aggregation server 106 (or an operator thereof) analyzes available market information to determine the highest price available for grid services capable of being filled using the aggregated EVE capacities for each block of time.
  • aggregation server 106 offers the total available capacity to one or more identified markets.
  • aggregation server 106 determines if the offered total available capacity was accepted by the grid 108. If the grid 108 accepts the offer, processing proceeds at step 1120 with the registration of the offered total available capacity with the grid 108 for dispatch. Processing by the aggregation server may then proceed in accordance with the steps of flowchart 1300 described with reference to FIG. 13. If the grid does not accept the offer, processing returns to step 1114 to identify another market.
  • FIG. 12 depicts a flow chart 1200 of exemplary steps for removing an EVE 102 from the grid 108 from the perspective of aggregation server 106.
  • aggregation server 106 determines if the vehicle is still connected. In an exemplary embodiment, aggregation server 106 determines that the vehicle is disconnected when communication is lost with VL 103 or when no communications have been received for a threshold period of time.. If the vehicle is no longer connected, processing proceeds at step 1204. Otherwise, aggregation server waits from the vehicle to be disconnected while continuing processing in accordance with the steps of flowcharts 1100 and 1300. At step 1204, aggregation server 106 removes the vehicle from the aggregation calculation in step 1110 (FIG. 11).
  • FIG. 13 is a flow chart 1300 of exemplary steps for dispatching vehicle total available capacity from the perspective of aggregation server 106.
  • aggregation server 106 determines if the grid 108 has issued a dispatch signal.
  • the grid dispatch signal is received from TSO, DSO, or IPP. If the grid 108 has issued a dispatch signal, processing proceeds at step 1304. Otherwise, aggregation server waits for a dispatch signal.
  • aggregation server 106 allocates capacity to be dispatched, among the connected vehicles. For example, if the dispatch signal from the grid 108 is requiring 10,000 Watts and there are 20 cars that have indicated that they can each supply 1,000 Watts, the aggregation server may allocate 500 Watts to each of the connected vehicles. In more complete exemplary embodiments, allocation may be based on other EVE attributes and operational parameters, including driving schedule and grid location.
  • aggregation server 106 dispatches the vehicles at each vehicle's allocated capacity.
  • aggregation server 106 issues dispatch commands to VLs 103 in accordance with allocated capacities.
  • aggregation server 106 received reports from the vehicles.
  • the vehicle reports may include actual Watts delivered, for example. If the actual Watts delivered are below the allocated amount, the aggregation server may attempt to reallocate among vehicles in step 1304.
  • aggregation server 106 sums the reports received in step 1308 and, in step 1312, sends the reports to the grid 108, e.g., the grid operator, such as TSO/, DSO or IPP, that issued the dispatch request.
  • the grid operator such as TSO/, DSO or IPP
  • aggregation server 106 determines if the aggregated power delivered is sufficient to meet the dispatch request. In an exemplary embodiment, aggregation server compares the total capacity allocated to the actual capacity identified in the reports. If the dispatch is sufficient, processing proceeds to step 1302 for the next dispatch. If the dispatch is not sufficient, processing proceeds at block 1304 with the aggregation server 106 attempting to reallocated the available capacity to meet the dispatched amount from the grid 108. Over a longer time frame, e.g., 15 minutes to one hour according to market rules, insufficient dispatch as determined in step 1314 will lead to a reduction in capacity offered to grid in step 1116.
  • the top level description of the aggregation server consists of server startup (boot), and three distinct operational loops. Each operational loop gives the approximate timing in parenthesis. The three loops need not be exclusive, for example, they may run concurrently with appropriate semaphores.
  • TSO Name of grid service buyers, and market/signaling rules.
  • DSO Updated DSO circuit and system maps, and switch states
  • IPP Generator state, generators needing storage resources Loops to register and deregister vehicles/VLs (event driven)
  • Loop to plan and offer capacity (e.g., hourly loop)
  • Loop for dispatch (e.g. one second loop)
  • Allocation of responses may be may be regional or local,
  • One variant of the loop for dispatch is arbitrage, including night charging.
  • the dispatch is by price, timing may not be critical, and reports may be optional or delayed to the end of accounting or billing period.

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Abstract

L'invention concerne des procédés, des systèmes et un appareil permettant d'agréger un flux d'énergie électrique entre un réseau électrique et des véhicules électriques. L'appareil d'agrégation de flux électrique comprend une mémoire et un processeur couplé à la mémoire afin de recevoir des attributs d'un équipement de véhicule électrique (EVE) depuis plusieurs EVE, d'agréger les attributs d'EVE, de prédire une capacité disponible totale en fonction des attributs d'EVE, et d'attribuer une partie au moins de la capacité disponible totale au réseau. Le flux d'électricité peut être agrégé en recevant des paramètres fonctionnels d'EVE, en agrégeant les paramètres fonctionnels d'EVE reçus, et en attribuant une partie au moins de la capacité totale disponible au réseau.
EP10846283.9A 2010-02-18 2010-09-22 Serveur d'agrégation pour véhicules intégré à un réseau Active EP2537224B1 (fr)

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PL10846283T PL2537224T3 (pl) 2010-02-18 2010-09-22 Serwer agregacyjny do pojazdów zintegrowanych z siecią
EP22185669.3A EP4106138B1 (fr) 2010-02-18 2010-09-22 Équipement de station de véhicule électrique
DK20180200.6T DK3826134T3 (da) 2010-02-18 2010-09-22 Aggregationsserver for net-integrerede fartøjer
EP20180200.6A EP3826134B1 (fr) 2010-02-18 2010-09-22 Serveur d'agrégation pour véhicules intégrés à un réseau

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US30574310P 2010-02-18 2010-02-18
US12/887,064 US9043038B2 (en) 2010-02-18 2010-09-21 Aggregation server for grid-integrated vehicles
PCT/US2010/049756 WO2011102855A1 (fr) 2010-02-18 2010-09-22 Serveur d'agrégation pour véhicules intégré à un réseau

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EP20180200.6A Previously-Filed-Application EP3826134B1 (fr) 2010-02-18 2010-09-22 Serveur d'agrégation pour véhicules intégrés à un réseau
EP22185669.3A Division EP4106138B1 (fr) 2010-02-18 2010-09-22 Équipement de station de véhicule électrique

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EP2537224A1 true EP2537224A1 (fr) 2012-12-26
EP2537224A4 EP2537224A4 (fr) 2017-08-30
EP2537224B1 EP2537224B1 (fr) 2020-06-17

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EP22185669.3A Active EP4106138B1 (fr) 2010-02-18 2010-09-22 Équipement de station de véhicule électrique
EP23199315.5A Pending EP4311715A3 (fr) 2010-02-18 2010-09-22 Communication de véhicule électrique à véhicule électrique
EP21196692.4A Active EP4033632B1 (fr) 2010-02-18 2010-09-22 Recharge d'un vehicule électrique par un autre véhicule électrique
EP20180200.6A Active EP3826134B1 (fr) 2010-02-18 2010-09-22 Serveur d'agrégation pour véhicules intégrés à un réseau
EP10846284.7A Active EP2537225B1 (fr) 2010-02-18 2010-09-22 Équipement de véhicule électrique pour véhicule intégré à un réseau
EP10846283.9A Active EP2537224B1 (fr) 2010-02-18 2010-09-22 Serveur d'agrégation pour véhicules intégré à un réseau
EP10846285.4A Active EP2537226B1 (fr) 2010-02-18 2010-09-22 Équipement de station de véhicule électrique pour véhicules intégrés à un réseau

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EP23199315.5A Pending EP4311715A3 (fr) 2010-02-18 2010-09-22 Communication de véhicule électrique à véhicule électrique
EP21196692.4A Active EP4033632B1 (fr) 2010-02-18 2010-09-22 Recharge d'un vehicule électrique par un autre véhicule électrique
EP20180200.6A Active EP3826134B1 (fr) 2010-02-18 2010-09-22 Serveur d'agrégation pour véhicules intégrés à un réseau
EP10846284.7A Active EP2537225B1 (fr) 2010-02-18 2010-09-22 Équipement de véhicule électrique pour véhicule intégré à un réseau

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EP (7) EP4106138B1 (fr)
JP (3) JP2013523058A (fr)
KR (3) KR20120135509A (fr)
CN (3) CN102792547B (fr)
DK (4) DK3826134T3 (fr)
ES (4) ES2966072T3 (fr)
FI (2) FI4033632T3 (fr)
PL (5) PL3826134T3 (fr)
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DK4033632T3 (da) 2024-01-02
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ES2825709T3 (es) 2021-05-17
KR20130006453A (ko) 2013-01-16
CN102844957A (zh) 2012-12-26
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US9754300B2 (en) 2017-09-05
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